July 14, 2026

Paul Protested First: The Apostle Who Defended the Gospel

Excerpt

There is a certain irony hiding in the word Protestant. We tend to date it to the sixteenth century — to Wittenberg, to a nailed-up list of grievances, to a monk who could no longer keep silent. But the instinct that word names is far older. To protest is to stand up when the gospel is being tampered with and refuse to let it pass. And by that measure, the first Protestant was not Martin Luther. It was the apostle Paul.


A man who protested

Read Paul's letters and you find a man who protested, and protested loudly. He did not treat the gospel as a matter of preference or negotiable emphasis. He treated it as a line that could not be crossed without peril to the soul.

To the churches of Galatia, who had begun drifting toward a message that added requirements to the finished work of Christ, he wrote without softening: "I am astonished that you are so quickly deserting him who called you... and are turning to a different gospel" (Galatians 1:6). And then the words that ought to stop any reader cold — if anyone, even an angel from heaven, should preach a gospel contrary to the one they received, "let him be accursed" (Galatians 1:8).

Two chapters later he is more personal still: "O foolish Galatians! Who has bewitched you?" (Galatians 3:1). This is not the language of a man managing a disagreement. It is the language of a man watching people he loves being talked out of their salvation, and refusing to be polite about it.

He protested against the circumcision party, who insisted that faith in Christ was not enough — that a Gentile must also take on the marks and works of the law to truly belong. He warned the Philippians to "look out for the dogs... those who mutilate the flesh" (Philippians 3:2), and then counted his own considerable religious achievements as loss, as rubbish, that he might gain Christ and be found in him "not having a righteousness of my own that comes from the law, but that which comes through faith in Christ" (Philippians 3:9).

And in perhaps the most striking protest of all, he opposed an apostle. When Peter withdrew from the Gentile believers under pressure from the circumcision group, Paul "opposed him to his face, because he stood condemned" (Galatians 2:11). The gospel mattered more than rank, more than reputation, more than keeping the peace.

Notice, too, what didn't happen. Peter didn't respond by pulling rank. There's no record of Peter issuing a decree to silence Paul, no apostolic edict excommunicating him for the confrontation. The rebuke stood, and the two men remained co-workers in the same gospel. Authority in the early church bent to truth — it didn't crush it.

In fact, in his own later writing, Peter goes out of his way to affirm Paul. In his second letter, he refers to Paul as "our beloved brother" and credits him with wisdom given by God, even placing Paul's letters alongside the rest of Scripture (2 Peter 3:15-16). The man Peter had been publicly corrected by, he later publicly commended. That's not the posture of someone nursing a grudge — it's the posture of someone who cared more about the truth of the gospel than about being seen as right.

The heart of the protest: faith alone

Strip away the specific occasions and one conviction runs beneath every one of Paul's protests: a person is justified — declared right before God — by faith in Christ, and not by works.

"We know that a person is not justified by works of the law but through faith in Jesus Christ" (Galatians 2:16). "For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast" (Ephesians 2:8–9). "Now to the one who works, his wages are not counted as a gift but as his due. And to the one who does not work but believes in him who justifies the ungodly, his faith is counted as righteousness" (Romans 4:4–5).

That last passage is the hinge. Paul is not merely settling a first-century quarrel about circumcision. He is stating a principle that reaches far beyond it: a wage is something owed, a debt paid for work done. A gift is something received freely, on the basis of nothing you contributed. Justification, Paul says, belongs entirely to the second category. The moment you make it partly a wage — partly something earned, deserved, or contributed — you have lost it.

Faith plus anything

Here is where the objection comes, and it is worth facing honestly rather than waving away. Paul's opponents were not medieval theologians. They were pushing Jewish boundary markers — circumcision, food laws, the calendar of feasts and Sabbaths. The question in Galatia was whether a Gentile had to become, in effect, a Jew in order to belong to Christ. That is not obviously the same fight the Reformers picked with Rome, whose system was one of sacrament and penance, merit and indulgence. Nobody was telling Luther to get circumcised.

The distinction is real, and pretending otherwise only weakens the case. But it does not go as far as the objection needs it to — because Paul himself does not stay at the level of circumcision. He reaches back past Moses to Abraham, who was counted righteous by faith before he was circumcised and before the law was given (Romans 4:9–11). He declares that "by works of the law no human being will be justified in his sight" (Romans 3:20) — and then applies it to the whole human race, Jew and Gentile alike. By Ephesians the qualifier "of the law" has fallen away entirely: salvation is "not a result of works" of any kind, "so that no one may boast."

Paul, in other words, takes a specific controversy and draws out of it a universal principle. The error he condemns is not merely circumcision. It is the deeper structure that circumcision was one instance of: faith in Christ plus a system as the ground of one's standing before God. The particular addition is almost beside the point. What damns is the plus.

And that is why his protest reaches across the centuries and lands on far more than he could have named in his own day. A sacramental-penitential system — grace administered through rites, righteousness infused and then cooperated with, a treasury of merit to be drawn upon — is a different species from the circumcision party. But it is the same error at root. It, too, makes the sinner's standing rest on Christ and a system. And to that structure, whatever fills the blank, Paul has already spoken: "You are severed from Christ, you who would be justified by the law; you have fallen away from grace" (Galatians 5:4).

To be fair to Rome, its theologians would not describe their system as replacing faith in Christ. They would say grace works through the sacraments, that they hold to salvation by grace even if not by faith alone. The Reformation answer — and it is Paul's answer in Romans 4 — is that infused grace which must then be cooperated with still quietly returns human contribution to the ground of justification. It turns the gift back into a wage. And a wage, Paul says, is precisely what justification is not.

The first Protestant

So was Paul a Protestant? Not in the historical sense — he had no medieval church to protest against, no ninety-five theses to nail up. To press the label that far would be to overclaim, and the honest reader knows it.

But in the sense that matters most, the answer is yes. Paul stood up when the gospel was being adulterated. He named the adulteration for what it was. He refused to add anything to the finished work of Christ received by faith, and he pronounced a curse on any gospel that tried. "A little leaven leavens the whole lump" (Galatians 5:9) — it is not the amount added that ruins the dough, but the fact of adding at all.

Fifteen centuries before the Reformation, the doctrine the Reformers would call sola fide was already being defended, letter by letter, church by church, with a fierceness that startles. The Reformation did not invent justification by faith alone. It recovered it. And the man it recovered it from had been protesting for it all along.

By Karl Grech

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